87772572572 has 12 divisors (see below), whose sum is σ = 155122814616. Its totient is φ = 43451768400.

The previous prime is 87772572571. The next prime is 87772572677. The reversal of 87772572572 is 27527527778.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87772572571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108629018 + ... + 108629825.

It is an arithmetic number, because the mean of its divisors is an integer number (12926901218).

Almost surely, 2^87772572572 is an apocalyptic number.

It is an amenable number.

87772572572 is a deficient number, since it is larger than the sum of its proper divisors (67350242044).

87772572572 is a wasteful number, since it uses less digits than its factorization.

87772572572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217258948 (or 217258946 counting only the distinct ones).

The product of its digits is 26891200, while the sum is 59.

The spelling of 87772572572 in words is "eighty-seven billion, seven hundred seventy-two million, five hundred seventy-two thousand, five hundred seventy-two".